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Close prepared statements (always happens with PHP) Close handler; Release locks acquired with GET_LOCK() This ensures that persistent connections are in a clean state on return from the connection pool, before the client process uses them. The MySQLi extension does this cleanup by automatically calling the C-API function mysql_change_user().
Database connection. A database connection is a facility in computer science that allows client software to talk to database server software, whether on the same machine or not. A connection is required to send commands and receive answers, usually in the form of a result set. Connections are a key concept in data-centric programming.
Stored procedure. A stored procedure (also termed prc, proc, storp, sproc, StoPro, StoredProc, StoreProc, sp, or SP) is a subroutine available to applications that access a relational database management system (RDBMS). Such procedures are stored in the database data dictionary . Uses for stored procedures include data-validation (integrated ...
Python syntax and semantics. The syntax of the Python programming language is the set of rules that defines how a Python program will be written and interpreted (by both the runtime system and by human readers). The Python language has many similarities to Perl, C, and Java.
The final step involves closing the cursor using the CLOSE statement: CLOSE cursor_name. After closing a cursor, a program can open it again, which implies that the DBMS re-evaluates the same query or a different query and builds a new result set. Scrollable cursors. Programmers may declare cursors as scrollable or not scrollable.
Fifth disease may lead to: symptoms that include headache, fatigue, low fever, sore throat, runny nose, diarrhea, and nausea. round, bright red rashes on the cheeks, but may be less noticeable on ...
Web development is the work involved in developing a website for the Internet ( World Wide Web) or an intranet (a private network). [1] Web development can range from developing a simple single static page of plain text to complex web applications, electronic businesses, and social network services. A more comprehensive list of tasks to which ...
The main types are: Drug-drug interaction. This is when a medication reacts with one or more other drugs. For example, taking a cough medicine ( antitussive) and a drug to help you sleep (sedative ...